Alert archive / Tennessee / Severe Thunderstorm Warnings in 2010

Severe Thunderstorm Warning 274, NWS Nashville, TN

August 4, 2010Jackson County, Smith County, Tennessee

NWS Nashville, TN issued this severe thunderstorm warning at Aug 4, 2010, 10:43 PM CDT for Jackson County, Smith County, Tennessee. It was in force for 47 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 4, 2010, 10:43 PM CDT (03:43 UTC)
Expired: Aug 4, 2010, 11:30 PM CDT
In force: 47 min
Issued by: NWS Nashville, TN
Area: Storm-based polygon

Counties Jackson County, TN, Smith County, TN

The radar

The Nashville radar (KOHX), 67 km from the middle of the area, began a volume at 03:44 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 3.7 hours before the alert went out and 348 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2185 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1445 m above ground
0-6 km bulk shear: 14 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: 34 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Nashville, TN wrote its last area forecast discussion before this severe thunderstorm warning went out at Aug 4, 8:14 PM CDT, 2 hours 29 minutes earlier.

Area forecast discussion, Aug 4, 8:14 PM CDT, 2 hours 29 minutes before

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Hazardous weather outlook, Aug 4, 6:08 PM CDT, 4 hours 35 minutes before

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In the hours before

Special weather statement, Aug 4, 7:19 PM CDT, 3 hours 24 minutes before

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Special weather statement, Aug 4, 9:17 PM CDT, 1 hour 26 minutes before

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Special weather statement, Aug 4, 9:31 PM CDT, 1 hour 12 minutes before

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Special weather statement, Aug 4, 9:33 PM CDT, 1 hour 10 minutes before

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Special weather statement, Aug 4, 9:54 PM CDT, 49 minutes before

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Local storm report, Aug 4, 10:04 PM CDT, 39 minutes before

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The office that day

Everything else NWS Nashville, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 5, 11:41 AM CDT	Severe Thunderstorm Warning	OHX	Macon, Sumner	34 min
Aug 5, 12:15 PM CDT	Severe Thunderstorm Warning	OHX	Macon, Sumner, Trousdale	30 min
Aug 5, 12:21 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis	24 min
Aug 5, 12:47 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson	28 min
Aug 5, 12:53 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Lewis	16 min
Aug 5, 1:04 PM CDT	Severe Thunderstorm Warning	OHX	Giles, Lawrence	26 min
Aug 5, 1:08 PM CDT	Severe Thunderstorm Warning	OHX	Sumner, Trousdale, Wilson	37 min
Aug 5, 1:10 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Jackson, Putnam, Smith	65 min
Aug 5, 1:14 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Rutherford, Williamson, Wilson	31 min
Aug 5, 1:17 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Putnam, White	28 min
Aug 5, 1:22 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman	23 min
Aug 5, 1:44 PM CDT	Severe Thunderstorm Warning	OHX	White	31 min
Aug 5, 1:45 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Smith, Wilson	30 min
Aug 5, 1:51 PM CDT	Areal Flood Advisory	OHX	Dickson, Hickman	3 hr
Aug 5, 1:51 PM CDT	Severe Thunderstorm Warning	OHX	Lawrence, Wayne	54 min
Aug 5, 1:56 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Rutherford	34 min
Aug 5, 2:06 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Putnam, Van Buren, White	24 min
Aug 5, 2:22 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Fentress, Overton, Putnam	38 min
Aug 5, 2:25 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson	35 min
Aug 5, 2:34 PM CDT	Severe Thunderstorm Warning	OHX	Bedford, Cannon, Coffee, Rutherford	26 min
Aug 5, 2:37 PM CDT	Areal Flood Advisory	OHX	Cumberland, Fentress, Overton, Putnam, White	113 min
Aug 5, 3:24 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Hickman, Humphreys	36 min
Aug 5, 3:45 PM CDT	Severe Thunderstorm Warning	OHX	Grundy	30 min
Aug 5, 4:18 PM CDT	Areal Flood Advisory	OHX	Dickson, Hickman, Humphreys	3 hr
Aug 5, 4:27 PM CDT	Heat Advisory	OHX	Benton, Houston, Montgomery, Stewart	3 hr
Aug 5, 4:37 PM CDT	Severe Thunderstorm Warning	OHX	Hickman, Humphreys, Perry	40 min
Aug 5, 5:06 PM CDT	Severe Thunderstorm Warning	OHX	Perry	30 min
Aug 5, 5:13 PM CDT	Severe Thunderstorm Warning	OHX	Perry	16 min

Nearby

Severe Thunderstorm Warnings in Tennessee, 2010 Every severe thunderstorm warning in 2010

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.